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Bluetooth: L2CAP: Fix potential user-after-free

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which makes it possible that the chan is disconnected in the meantime.

Announced Source revision 1
Original source ↗

CVE-2023-54214

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2023-54214

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "b2fde8cb2a25125111f2144604e0e7c0ebcc4bba",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "60aaccf16d1e099c16bebfb96428ae762cb528f7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "b8ed41cc04fb74005aa51d17865ca3d022760335",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "31a288a4df7f6a28e65da22a4ab2add4a963738e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "64e28ecf44e46de9f01915a4146706a21c3469d2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "994e3e18908f5c4a12d07b44018e6aa85f071048",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a6a5568c03c4805d4d250f6bd9d468eeeb4ea059",
        "lessThan": "df5703348813235874d851934e957c3723d71644",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/bluetooth/l2cap_core.c",
      "net/bluetooth/l2cap_sock.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.5"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.5",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "4.14.308",
        "versionType": "semver",
        "lessThanOrEqual": "4.14.*"
      },
      {
        "status": "unaffected",
        "version": "4.19.276",
        "versionType": "semver",
        "lessThanOrEqual": "4.19.*"
      },
      {
        "status": "unaffected",
        "version": "5.4.235",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.173",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.99",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.16",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.2.3",
        "versionType": "semver",
        "lessThanOrEqual": "6.2.*"
      },
      {
        "status": "unaffected",
        "version": "6.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/bluetooth/l2cap_core.c",
      "net/bluetooth/l2cap_sock.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2023-54214

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#30362 · Revision 1
Added to Heist Feed
Publisher date
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